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Finding the Fourth Proportional to 64,223.40, 96,212.70 and 34,631.40

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Solution

The fourth proportional to 64,223.40, 96,212.70 and 34,631.40 is: 51,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,223.40 : 96,212.70 = 34,631.40 : x
  2. Step 2: Convert to fraction form
    64,223.40/96,212.70 = 34,631.40/x
  3. Step 3: Cross multiply
    64,223.40x = 96,212.70 × 34,631.40
  4. Step 4: Simplify right side
    64,223.40x = 3,331,980,498.78
  5. Step 5: Solve for x
    x = 3,331,980,498.78/64,223.40
  6. Step 6: Final answer
    x = 51,881.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.